The problem states that old price is 4 and new price is 3. If you buy 5 at the old price, how many can you buy at the new price. It sounds like the items are purchased with the same amount of money.
2025/6/11
1. Problem Description
The problem states that old price is 4 and new price is
3. If you buy 5 at the old price, how many can you buy at the new price. It sounds like the items are purchased with the same amount of money.
2. Solution Steps
Let be the number of items bought at the old price and be the number of items bought at the new price.
The old price is 4 and the new price is
3. The cost of buying $x$ items at the old price is $4x$.
The cost of buying items at the new price is .
We are given that .
So, the cost of buying 5 items at the old price is .
We want to find how many items we can buy with the same amount of money ($20) at the new price.
.
.
Since we can only buy whole items, we can buy 6 items at the new price.
3. Final Answer
6